# Mixed Quantitative Aptitude Questions Set 234

1. 6 men or 8 women or 3 boys completed certain work in a day is equal. Find in how many days a man and a boy can complete the three-fourth of same work together ?
2 days
3 days
5 days
6 days
1.5 days
Option E
Let total work = 48
6 men = 8men = 3 boys
efficiency of a man = 48/6 = 8
efficiency of a woman = 48/8 = 6
efficiency of a boy = 48/3 = 16
days require = 48/(16 + 8) * 3/4 = 1.5 days

2. A sum becomes rs.9280 in 6 years and becomes rs.10440 in 8 days at the same rate on simple interest. Find compound interest earned in 2 years on rs.6000 at same rate of interest ?
1520
1840
2540
1340
1260
Option E
SI for 2 years = 10440 – 9280 = 1160
SI for 6 years = 1160/2 * 6 = 3480
sum = 9280 – 3480 = 5800
rate interest = 3480/(5800 * 6) *100 = 10%
CI for 2 years = 10 + 10 + 10 * 10/100 = 21%
CI = 6000 * 21/100 = 1260

3. A bat was sold at rs,1260 after giving 30% discount on market price. If discount was not given, then he would have earned 50% profit. Find cost price of bat ?
1400
1280
1800
1200
1440
Option D
Market price of bat = 1260/70 * 100 = 1800
CP = 1800/150 * 100 = 1200

4. Two trains travel from Mumbai to Bangalore and Bangalore to Mumbai in 10 hours and 12 hours respectively. Both trains started simultaneously at 8 am and the train started from Mumbai met with accident at 12 pm. Find percentage reduction in speed of train started from Mumbai, if they meet each other at 2 pm, assume there is no loss of time in accident ?
30%
48%
50%
42%
20%
Option C
Ratio of speed is inversely proportional to time taken if distance is constant.
Let speed of Mumbai to Bangalore travelling train = 6x km/hr
speed of Bangalore to Mumbai travelling train = 5x km/hr
Let total distance = 60x km
let speed of train after accident = y km/hr
60x = 4 (6x + 5x) + 2 (y + 5x)
y = 3x km/hr
reduction in speed = 6x – 3x/6x * 100 = 50%

5. The radius of a circle is 14 km. What is area of another circle having radius 1.5 times of the actual circle ?
1540 cm^2
1386 cm^2
1440 cm^2
1450 cm^2
1240 cm^2
Option B
Radius of another circle = 14 * 1.5 = 21 cm
area = πr^2 = 22/7 * 21 * 21 = 1386 cm^2

6. Directions : What will come in place of questions (?) mark in the following missing series ?
4, 2, 3, 7.5, 26.25, ?
120.125
118.5
114.5
118.125
120
Option D
The series is, (* .5), (* 1.5), (* 2.5), (* 3.5), (* 4.5)

7. 148, 196, 268, 364, 484, ?
650
640
452
620
628
Option E
The series is, (+ 48), (+ 72), (+ 96), (+ 120), (+ 144),

8. 46, 52, ?, 136, 256, 466
84
78
68
76
80
Option D
The series is, (+ 2^3 – 2), (+ 3^3 – 3), (+ 4^3 – 4), (+ 5^3 – 5), (+ 6^3 – 6),

9. 16000, 8000, 24000, 6000, ?, 30000, 5000
40000
18000
12000
42000
30000
Option E
The series is, (÷ 2), (* 3), (÷ 4), (* 5), (÷ 6)

10. 24, 28, 36, 52, 84, ?
240
148
120
124
168
Option B
The series is, (+ 4), (+ 8), (+ 12), (+ 32), (+ 64),